JPH0559712A - Intake device of suspending type - Google Patents

Abstract

PURPOSE:To execute setting work easily and reduce a setting cost by supporting a cylinder type intake equipment consisting of an intake pipe, its opening or closing device, and an intake tower, on a support at the top of a dam body. CONSTITUTION:A cylinder type intake equipment 1 consisting of an intake pipe 2, its opening or closing device 5, and an intake tower 3 is composed to be supported on a support 15 set at the top of a dam body 9. Then, on setting work, in a state that the intake equipment 1 is suspended by a suspending equipment fitted on the support 15, its connecting work is executed in the air. After that, setting work only for a connecting pipe 8 at a last setting step is executed as under-water work in order to combine the pipe 8 with a ready-set pipe.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting type water intake device for supporting a cylinder type water intake facility installed in a dam.

[0002]

2. Description of the Related Art An example of a conventional cylinder type water intake installation device is shown in FIGS. 18 to 22, reference numeral 1 denotes a cylinder type water intake facility, which includes an intake pipe 2, an intake tower 3, a screen 4, an opening / closing device 5 for moving the intake pipe 1 up and down, and a tower gutter 6. And the existing pipe 7
The water intake device 1 is composed of a connecting pipe 8 for connecting to the
Supported by. In the figure, 11 is a gate, 12 is a gate slot (vertical shaft), 13 is a dam water level, 14 is a water flow, and the water flow 14 is conducted to a power plant located downstream.

[0003]

When it is attempted to newly install water intake equipment in an existing dam as shown in FIGS. 18 to 22, the dam water level cannot be lowered due to the problem of the vested water right in the downstream, and underwater construction is required. There are many cases where underwater work is possible at a water depth of 40 m, but it is possible to work underwater at this depth 3
It is less than 0 minutes, which is not realistic. In particular, the foundation concrete pouring shown in FIG. 19 and the installation of the water intake tower, the connecting pipe, etc. are underwater work, and even if the water depth is shallow, underwater work is expensive.

The present invention seeks to reduce the length of underwater work where this cost is high and difficult.

[0005]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 3 corresponding to an embodiment. The present invention is directed to an intake pipe 2 and opening / closing of the intake pipe 2. It is characterized in that the cylinder-type water intake equipment 1 including the device 5 and the water intake tower 3 is supported by a support frame 15 provided at the top of the dam bank 9.

[0006]

According to the present invention, since the cylinder-type water intake equipment is supported by the support pedestal provided on the top of the dam levee by the above means, the dam levee does not require basic concrete, and the support pedestal is used. Since it can be installed while suspended from above, underwater work can be greatly reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In the drawings, reference numerals 1 to 14 are the same as those in the conventional example shown in FIGS. Since the reference numerals are used, the description thereof will be omitted. Further, in the present invention, the water intake facility 1 was supported by the support frame 15 provided on the top of the dam bank 9. In the figure, 16 is an anchor for suppressing the support base 15 from falling, and 17 is an anchor for suppressing the lateral fluctuation of the intake facility 1 at the time of an earthquake.

Next, the installation means will be described. As shown in FIG. 4, a concrete crushing portion 18 and a working floor 19 are formed on the back surface of the dam dam body 9, and a PC cable is formed in this crushing portion 18 as shown in FIG. 20 is attached and concrete is poured to form a base portion 21, and a support frame 15 is installed on the base portion 21 as shown in FIG. Next, as shown in FIG. 7, the entire lower support 23
As shown in FIG. 8, the entire lower support 23 is assembled to be supported by the support base 15 through the lifting equipment 25 while being moved by the moving carriage 24, and as shown in FIG.
2, the water intake tower 3 is assembled and the water intake tower 3 is moved by the moving carriage 24 as shown in FIG.
Then, the water intake gate 26 is assembled on the carrier 22 as shown in FIG. 11, and the lifting equipment 25 is moved by moving the water intake gate 26 by the moving carriage 24 as shown in FIG. The water intake tower 3 supported by the support pedestal 15 via the pedestal 22 and assembled as shown in FIG. 13 completes the assembly of the water intake equipment 1. Next in FIG.
4, the connecting pipe 8 is assembled on the pontoon 22, and the connecting pipe 8 is attached to the existing pipe 7 in water as shown in FIG.
Next, as shown in FIG. 16, the connecting pipe 8 and the water intake equipment 1 are connected, and the water intake equipment 1 is further connected to the anchor 1 as shown in FIG.
7 and the opening / closing device 5 is mounted on the support frame 15 to finish the installation.

Thus, the lifting equipment 2 attached to the support base 15.
The connection work can be performed in the air by suspending the water intake equipment 1 in the middle of installation by means of No. 5, and when installing the connection pipe 8 in the final stage of the installation, there is an interaction with the existing pipe 7. Therefore, the work is underwater, but most of the work up to that point can be done in the air.

[0010]

As described above, according to the present invention, since the cylinder type water intake equipment is supported by the support frame provided on the top of the dam dam body, most of its installation work is performed in the air. It is possible to reduce the installation cost and become economical. Also, when connecting to an existing pipe, it will be underwater work, but in some cases it may be possible to lower the water level and perform aerial work. Even in such a case, since the underwater work is greatly reduced as compared with the conventional one, the water level lowering period is short and the influence on the downstream water right holder is small.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is a first step diagram of the installation of the present invention.

FIG. 5 is a second installation step diagram of the present invention.

FIG. 6 is a third step diagram of the installation of the present invention.

FIG. 7 is a fourth step diagram of the installation of the present invention.

FIG. 8 is a fifth step diagram of the installation of the present invention.

FIG. 9 is a sixth step diagram of the installation of the present invention.

FIG. 10 is a seventh step diagram of the installation of the present invention.

FIG. 11 is an eighth step diagram of the installation of the present invention.

FIG. 12 is a ninth step diagram of the installation of the present invention.

FIG. 13 is a tenth step diagram of the installation of the present invention.

FIG. 14 is an eleventh step diagram of the installation of the present invention.

FIG. 15 is a twelfth installation step diagram of the present invention.

FIG. 16 is a thirteenth installation step diagram of the present invention.

FIG. 17 is a fourteenth step diagram of the installation of the present invention.

FIG. 18 is a front view showing a conventional example.

FIG. 19 is a side view showing a conventional example.

FIG. 20 is a plan view showing a conventional example.

21 is a cross-sectional view taken along the line AA of FIG.

22 is a cross section taken along line BB of FIG.

[Explanation of symbols]

 1 Water intake equipment 2 Water intake pipe 3 Water intake tower 5 Switchgear 9 Dam bank 15 Support stand

Claims (1)

[Claims] 1. A hoisting type water intake device, characterized in that a water intake pipe, and a cylinder type water intake equipment consisting of an opening / closing device for the water intake pipe and an intake tower are supported on a support frame provided at the top of a dam bank.